How to select all the option in the multipledropdown field by default and also provide "select all" option in dropdown

Hey

This code helps achieve the functionality you're looking for using a multiple dropdown. All the options are stored in a local variable and preselected by default. To deselect, you can simply click the “×” icon on the multiple dropdown field, which clears the selection. This gives a clean and user-friendly way to toggle selections without extra UI controls.

yeah thanks for the code. but what if user want to select all the options again. customer want option as select all and deselect all along with the options

yeah thanks for the code. but what if user want to select all the options again. customer want option as select all and deselect all along with the options

Well in that case try this code ,this can be a workaround the intended functionality

a!localVariables(
  local!allOptions: {
    1, 2, 3, 4
  },

  local!selectedOptions: local!allOptions, /* Default: all selected */

  local!selectAll: true, /* Controls checkbox */

  {
    a!checkboxField(
      label: "Select All",
      choiceLabels: {"All"},
      choiceValues: {true},
      value: if(count(local!selectedOptions) = count(local!allOptions), {true}, {}),
      saveInto: {
        a!save(
          local!selectedOptions,
          if(
            or(a!isNullOrEmpty(save!value) , length(save!value) = 0),
            {}, /* Deselect all */
            local!allOptions /* Select all */
          )
        )
      }
    ),

    a!multipleDropdownField(
      label: "Options",
      choiceLabels: {"Option 1", "Option 2", "Option 3", "Option 4"},
      choiceValues: local!allOptions,
      value: local!selectedOptions,
      saveInto: {
        a!save(local!selectedOptions, save!value)
      }
    )
  }
)

Hi Meha... it works 70% of the expected outcome. am facing one trouble here. for example in multiple dropdown i have options like A B C D. as per above code by default all four options got selected and select all check box also got selected.

1. user deselected some options like A C and check box got deselected. and suddenly if user want to select all the option when i click on all check box am getting error. because checkbox has one value only. can you please help me out here. i tried many things but i couldnt

 Anitha Dharmalingam  I tried Megha's code, and it looks good to me based on your needs. Could you share the code you're using that's causing the error?

Hi Anitha,

The overall approach in above code works as expected just as you explained not sure what is the issue you are facing! I just made a few small tweaks to improve stability.

Here’s the updated version:

a!localVariables(
  local!allOptions: {1, 2, 3, 4},
  local!selectedOptions: {1, 2, 3, 4},
  local!selectAll: true,

  {
    /* Checkbox Field for Select All / Deselect All */
    a!checkboxField(
      label: if(local!selectAll, "Deselect All", "Select All"),
      choiceLabels: {""},
      choiceValues: {true},
      value: if(local!selectAll, {true}, {}),
      saveInto: {
        a!save(
          local!selectedOptions,
          if(
            a!isNullOrEmpty(save!value),
            {}, /* Deselect all */
            local!allOptions /* Select all */
          )
        ),
        a!save(local!selectAll, not(a!isNullOrEmpty(save!value)))
      }
    ),

    /* Multiple Dropdown Field */
    a!multipleDropdownField(
      label: "Options",
      choiceLabels: {"A", "B", "C", "D"},
      choiceValues: local!allOptions,
      value: local!selectedOptions,
      saveInto: {
        a!save(local!selectedOptions, save!value),
        a!save(
          local!selectAll,
          count(save!value) = count(local!allOptions)
        )
      }
    )
  }
)

Thank you.. it works.